Solve for q
q=\frac{K+22}{2}
Solve for K
K=2\left(q-11\right)
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2q=K+22
Swap sides so that all variable terms are on the left hand side.
\frac{2q}{2}=\frac{K+22}{2}
Divide both sides by 2.
q=\frac{K+22}{2}
Dividing by 2 undoes the multiplication by 2.
q=\frac{K}{2}+11
Divide K+22 by 2.
K=2q-22
Subtract 22 from both sides.
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